<!DOCTYPE html>
<html>
<body>
<h2>Hello World!</h2>
<form action="uploadIOFile" method="post" enctype="multipart/form-data">
    <input type="text" name="username" value="ssss" />
    <input type="file" name="userPhone" >
    <button type="submit">上传想</button>
</form>
</body>
</html>
